Effect of disorder on ultrafast exciton dynamics probed by single molecule spectroscopy

Jordi Hernando, Erik M.H.P. Van Dijk, Jacob P. Hoogenboom, Juan José García-López, David N. Reinhoudt, Mercedes Crego-Calama, María F. García-Parajó, Niek F. Van Hulst

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29 Citations (Scopus)

Abstract

We present a single-molecule study unraveling the effect of static disorder on the vibrational-assisted ultrafast exciton dynamics in multichromophoric systems. For every single complex, we probe the initial exciton relaxation process by an ultrafast pump-probe approach and the coupling to vibrational modes by emission spectra, while fluorescence lifetime analysis measures the amount of static disorder. Exploiting the wide range of disorder found from complex to complex, we demonstrate that static disorder accelerates the dephasing and energy relaxation rate of the exciton. © 2006 The American Physical Society.
Original languageEnglish
Article number216403
JournalPhysical Review Letters
Volume97
Issue number21
DOIs
Publication statusPublished - 28 Nov 2006

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